Accession Number : AD0602069

Title :   THE DISSOCIATION ENERGIES OF DIATOMIC MOLECULES OF THE TRANSITION ELEMENTS. PART I. NICKEL.

Corporate Author : ARMY MATERIALS RESEARCH AGENCY WATERTOWN MASS

Personal Author(s) : Kant,Arthur

Report Date : JUN 1964

Pagination or Media Count : 14

Abstract : The Ni2 molecule was shown to exist in the vapor phase over liquid nickel above 2000K. Using information derived from a combination of effusion and mass spectrometric techniques, the dissociation energy of Ni2 was calculated from the ratio of dimeric and monomeric nickel in equilibrium with liquid. The resulting value = 54.5 = 5 kcal. From the accepted value of the heat of sublimation of nickel and the dissociation energy of the dimer the heat of sublimation for the process 2 Ni (solid) = Ni2(gas) is, at 0 K, 146.9 = 7 kcal. (Author)

Descriptors :   (*NICKEL, DISSOCIATION), TRANSITION METALS, DIATOMIC MOLECULES, VAPORS, MASS SPECTROSCOPY, THERMOCHEMISTRY, HEAT OF SUBLIMATION

Distribution Statement : APPROVED FOR PUBLIC RELEASE